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Finding the Fourth Proportional to 9,156.56, 12,636 and 4,964.72

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Solution

The fourth proportional to 9,156.56, 12,636 and 4,964.72 is: 6,851.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.56 : 12,636 = 4,964.72 : x
  2. Step 2: Convert to fraction form
    9,156.56/12,636 = 4,964.72/x
  3. Step 3: Cross multiply
    9,156.56x = 12,636 × 4,964.72
  4. Step 4: Simplify right side
    9,156.56x = 62,734,201.92
  5. Step 5: Solve for x
    x = 62,734,201.92/9,156.56
  6. Step 6: Final answer
    x = 6,851.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.